Article: From lenses to Optical Instruments this article is written at a high level of technical language, but is accurate and useful (imho). It contains the following contents: INTRODUCTION, THE LENS WHICH PRODUCES IMAGES, MAGNIFICATION OF A LENS PRODUCING IMAGES, DETERMINATION OF THE FOCAL LENGTH, FOCAL LENGTH AND DIOPTERS, THE MAGNIFYING LENS, THE OPTICAL INSTRUMENTS, REAL OR THICK LENSES, and CONCLUSIONS.
Article: From lenses to Optical Instruments this article is written at a high level of technical language, but is accurate and useful (imho). It contains the following contents: INTRODUCTION, THE LENS WHICH PRODUCES IMAGES, MAGNIFICATION OF A LENS PRODUCING IMAGES, DETERMINATION OF THE FOCAL LENGTH, FOCAL LENGTH AND DIOPTERS, THE MAGNIFYING LENS, THE OPTICAL INSTRUMENTS, REAL OR THICK LENSES, and CONCLUSIONS.